Toothbrush



. 1 June 21, 1927. R: E. STRAEHLY 59 TOOTHBRUSH Filed May 25. 1925making Patented June 21, 1927.

PATENT OFFER;

ROYDEN EDWARD STRAEHLY, OF CHICAGO, ILLINOIS.

TOOTHBRUSH.

Application filed May 25,1925. Serial No. 32,676.

The invention relates broadly to brushes and particularly toimprovements in brushes for cleaning the teeth.

An object of the invention is to provide a brush in which the bristleholder and handle may be turned at any desired angle relative to eachother so as to make the effective brushing of the teeth simple and easyof accomplishment.

It is another object of the invention to provide a brush that may beused with the support carrying the bristles disposed at such an anglethat an up and down movement to the brush can easily be efiected, thusit easy to clean the crevices and pockets in the teeth and to avoid thetendency to use the brush in a horizontal stroke, in which instanceparticles in the crevices of the teeth become packed between the teethdue to this horizontal brushing stroke instead of being ejected.

It is a further object of the invention to provide a tooth brush with aflattened bent end to be utilized in scaling the teeth, or in removingforeign matter lodged between the teeth.

T'Vith these and many other objects in view a preferred embodiment isshown, in the drawings, in which:

Fig. 1 is a side elevational view.

ll 52 is a cross section taken on line 2-2 of Fig. 1.

Fig. 3 is a perspective view of the bristle support shown detached fromthe handle.

Fig. 1 is a top plan view of a fragment of the handle secured to thebristle supportshown in full lines, the bristle support turned at rightangles thereto shown in dotted lines.

In the carrying out of the invention the article is usually made ofbone, celluloid, hard rubber, or aluminum. The handle 5, as shown, is ofsubstantially rectangular cross section and is curved slightlydownwardly as at 6 to bring the grip portion 7 to a convenient angle atwhich to grip it when using. The end, is flattened to a wedge shape as 8to provide means for scaling the teeth, or removing foreign matter thatmay become lodged in inaccessible places, and an aperture is providedadjacent this flattened port tobe utilized in hanging the brush on ahook, nail, or the like when not in use. A counter bore 9 illustrated inFig. 2 is sunk for a portion of the depth of the handle, and a bore 10of smaller diameter is provided concentric therewith to be utilized inreceiving a pivot pin.

The support 11 has a portion of its upper surfaces cutaway to form ashoulder 12. A bore 13 is provided in the upper side of the support anda groove 14 is provided directly below it, to receive a yielding member15, carrying said support on which are tufts of bristles 16, hair or thelike arranged to project perpendicularly therefrom, to provide thecleaning element. A pivot pin 17 is provided with an enlarged head toengage the counter bore 9' in the upper face of the handle and hassecured to its lower end within the groove 14: the yielding element 15,which is formed of spring steel or the like and formed with a centralarcuate portion to'which the pin is riveted. It will be seen that whenusing the brush as shown in the position indicated in Fig. 1 with thesupport parallel to the handle that the resilient element will permitthe handle to give a little with respect to the support so as to makethe operation of cleaning the teeth more convenient.

In Fig. 4 the brush support is shown disposed at right angles to thehandle and in brushing the teeth with the brush in this position by anup and down movementa thorough cleaning is easily accomplished.v

It is to be understood that in attaining these ends, minor changes maybe made in the details herein set forth without departing from thespirit of the invention set forth.

' I claim:

A tooth brush comprising a body provided with brush elements and alsohaving atransverse recess in its under face that extends substantiallyacross the body, an angularly adjustable handle extending from the body,a pivot pin projecting through the handle and body and projecting intothe recess, a head on the outer end of the pin and contacting with theouter faceof the handle,

a and a bowed resilient element accommodated 7 the latter tofrictionally engage the body 7 l and also serving to lock the bodyagainst axial movement on the pivot pin.

In testimony whereof I afiix my signature 10 at 10 South La SalleStreet, Chicag0,Illinois.

RUYDEN EDWARDSTRAEHLY.

